Added forms.alchemy module and changed CRUD view to use it.

tailbone/forms/__init__.py

@@ -27,5 +27,6 @@ Forms
 """
 
 from .simpleform import *
+from .alchemy import *
 from .fields import *
 from .renderers import *

tailbone/forms/alchemy.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2012 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option)
+#  any later version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU Affero General Public License
+#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+"""
+FormAlchemy Forms
+"""
+
+from edbob import Object
+from pyramid.renderers import render
+from ..db import Session
+
+
+__all__ = ['AlchemyForm']
+
+
+class AlchemyForm(Object):
+    """
+    Form to contain a :class:`formalchemy.FieldSet` instance.
+    """
+
+    create_label = "Create"
+    update_label = "Update"
+
+    allow_successive_creates = False
+
+    def __init__(self, request, fieldset, **kwargs):
+        super(AlchemyForm, self).__init__(**kwargs)
+        self.request = request
+        self.fieldset = fieldset
+
+    def _get_readonly(self):
+        return self.fieldset.readonly
+    def _set_readonly(self, val):
+        self.fieldset.readonly = val
+    readonly = property(_get_readonly, _set_readonly)
+
+    @property
+    def successive_create_label(self):
+        return "%s and continue" % self.create_label
+
+    def render(self, **kwargs):
+        kwargs['form'] = self
+        if self.readonly:
+            template = '/forms/form_readonly.mako'
+        else:
+            template = '/forms/form.mako'
+        return render(template, kwargs)
+
+    def save(self):
+        self.fieldset.sync()
+        Session.flush()
+
+    def validate(self):
+        self.fieldset.rebind(data=self.request.params)
+        return self.fieldset.validate()

tailbone/views/crud.py

@@ -26,15 +26,15 @@
 CRUD View
 """
 
+from .core import View
 from pyramid.httpexceptions import HTTPFound
 
-import formalchemy
-
-from edbob.pyramid.forms.formalchemy import AlchemyForm
-from .core import View
-from edbob.util import requires_impl, prettify
+from ..forms import AlchemyForm
+from formalchemy import FieldSet
 from ..db import Session
 
+from edbob.util import requires_impl, prettify
+
 
 __all__ = ['CrudView']
 
@@ -74,7 +74,7 @@ class CrudView(View):
     def make_fieldset(self, model, **kwargs):
         kwargs.setdefault('session', Session())
         kwargs.setdefault('request', self.request)
-        fieldset = formalchemy.FieldSet(model, **kwargs)
+        fieldset = FieldSet(model, **kwargs)
         fieldset.prettify = prettify
         return fieldset